Sonodyne PM V2 Series User manual

PM SERIES V2
2 way active monitor I owners manual
www.sonodyne.com

PM SERIES V2 page 1
INTRODUCTION
Congratulations on your purchase of the PM V2 near field active studio monitor. The PM V2 has all the
makings of a truthful reference device. The high grade transducers, the heavily-braced MDF rigid enclosure,
the active amplification, result in sound that is neutral and transparent. You may thus depend on the PM V2
to accurately meet your professional monitoring needs.
SAFETY
• Please ensure proper earthing.
• Please keep away from moisture.
• The equipment is capable of producing SPL in excess of 100dB. Long term exposure may cause
permanent hearing damage.
• Ensure that the speakers are not covered while in use. Restricted airflow at the rear of the unit will
cause it to heat up.
UNPACKING
While removing the units from the carton, please do not hold the speaker’s front. The high frequency
transducer is located near the top of the cabinet, on the front baffle; you may accidentally damage the
transducer.
The best way to safely unpack the monitors is to open the top of the carton, keep the EP filler piece on, turn
the entire carton upside down and pull off the carton. Then remove the filler pieces and the protective cloth.
PM SERIES V2 page 2
FIG. 1INTRODUCTION •SAFETY •UNPACKING
1
2
3
4
7
5
6

CONTROLS & FEATURES
PM SERIES V2 page 3 PM SERIES V2 page 4
ROOM COMPENSATION (HF) HF TILTS
Switch 4 introduces a high frequency response shelf cut of 2dB above 4kHz. This feature can be used
if the testing room is 'fairly live' or the listening position is close to the speakers. But it is generally not
used for applications in 'dead' rooms.
After you've studied the PM’s rear panel switches, do not hesitate to experiment with the settings and
also monitor placement to get the best results.
The effects of the plots are
PM 50 V2: Bass tilt Fig 3
Bass Roll off Fig 4
Treble tilt Fig 4
PM 100 V2 Bass tilt Fig 6
Bass Roll off Fig 5
Treble tilt Fig 5
FRONT PANEL
Power Indicator: This lights up when power is ON
REAR PANEL (refer to Fig. 1 on page 2)
1. AC SOCKET
This is a fused 3-pin IEC AC receptacle for connecting to a wall outlet with the cable supplied. Ensure
that the wall outlet is properly earthed, that is, the earth must be connected to a earth bus-bar which
connects to other audio equipment and is not shared by noisy equipment like computers, air-
conditioners, lighting appliances etc. The earth connection is also required in the interests of your
own safety, should any fault occur. Please check that the wall outlet is capable of providing the current
requirement of the product, printed on the back panel near the IEC AC socket.
2. POWER SWITCH
This switch is used to turn power on or off
3. OVER-VOLTAGE PROTECT LED
The PM V2 has a protection feature which automatically shuts off the power when the mains voltage
crosses an upper limit. In such case, this LED will glow. Normal operation will resume when the over-
voltage condition is removed.
4. BALANCED INPUT
This is a fully balanced XLR input socket.
Pin connections are 1: ground, 2: hot or positive, 3: cold or negative.
5. UNBALANCED INPUT
This is an RCA unbalanced type input. Connect your source to this socket if it has an unbalanced input
6. GAIN
The PM V2 has a variable gain cum volume control. The gain is factory set to center position. The
variable gain setting allows the user to get a good sensitivity match when using either professional or
semi-professional equipment. Turned down from its center position, it acts as an attenuator.
7. ROOM COMPENSATION SWITCHES
BASS ROLL-OFF: Switch 1 when ON introduces a low frequency roll-off into the response curve.
For many applications, removal of deep bass content allows you to raise the overall output level,
permitting LOUD mixing. But, keep in mind that removing deep bass content from monitors may
actually result in an inaccurate bass reproduction.
BASS TILTS: Switches 2 & 3 when ON activate a filter @ 80Hz, to reduce the low frequency output
by 2dB & 4dB respectively. Engaging both switches produces a 6dB roll-off. These functions can be
used to compensate for the build-up of low frequencies that occur when the speakers are placed near
walls or corners, or on the workbench surfaces. When the monitors are at a free-standing position,
away from walls and workbenches turn these switches OFF.
CONTROLS & FEATURES

FIG. 3
PM 50 V2
FIG. 4
PM 50 V2
PM SERIES V2 page 5 PM SERIES V2 page 6

FIG. 5
PM 100 V2
FIG. 6
PM 100 V2
PM SERIES V2 page 7 PM SERIES V2 page 8

INSTALLATION
ROOM PLACEMENT
The PM V2 has a wide variety of placement options. Shown in Fig. 8 is a typical stereo setup for near field
monitoring. Shown in Fig. 7 is a typical 5 channel setup.
The monitors should be angled to directly face the listener. The center of the high frequency transducer
should be on-axis with the ear level of the listener.
The low frequency compensation settings can be used when speakers are placed in close proximity to walls,
corners and work surfaces.
LISTENING DISTANCE
The common listening position at mixing positions is generally 1 to 1.5m for near field applications. The
stereo listening angle is more a matter of personal preference, but we recommend the angle should be
around 60° as shown in Fig. 8
MOUNTING OPTIONS
For mounting the speaker on a wall 4 inserts are provided on the base as shown in Fig. 9
INSTALLATION •FIG. 7
PM SERIES V2 page 9 PM SERIES V2 page 10
OPERATION
Connect the line level monitor signal from your mixer (or any other source) to the signal input on the PM
studio monitor using balanced cables ( 3 pin XLR).
Connect the supplied AC power cord to the IEC socket at rear panel.
Keep the power switch at OFF position.
Switch on your mixer, but keep the master level control at minimum.
Switch on PM V2. The blue power LED will light up. Ensure that the Input Sensitivity (Gain control at the rear
panel) is set to 0dB
Adjust the master volume on your mixer to get the desired listening level.
NOTE
Your PM V2s’ achieve their best bass response in a room that is optimized for bass reproduction. Factors
such as room shape and volume, absence of acoustical treatment can prove to be a bane for optimal sound
reproduction from the PM V2. Therefore we have provided some compensation controls which you can use to
optimize the frequency response of the speakers for any particular room. For the effect of these 'tilts' please
refer to Fig: 3-6.
MAINTENANCE
No user serviceable parts inside the unit. All maintenance and repair work to be undertaken by qualified
personnel only.
FIG. 8 •FIG. 9 •OPERATION •MAINTENANCE
FIG. 8
FIG. 7
FIG. 9
BOTTOM VIEW

PM 50V2 SPECIFICATIONS
PM SERIES V2 page 11
SYSTEM
DESCRIPTION 2-way active monitor
TRANSDUCER COMPLEMENTS LF: 5" injection-moulded PP cone woofer
HF: 26mm silk-dome neodymium magnet tweeter
ENCLOSURE TYPE Vented, through rear-firing aerodynamic port
ENCLOSURE MATERIAL MDF
OVERALL FREQUENCY RESPONSE 75Hz ~ 20kHz, (±3dB)
USABLE FREQUENCY RESPONSE 65Hz ~ 22kHz, (±10dB)
MAX SPL, HALF SPACE 104dB
CROSSOVER FREQUENCY 2.5kHz
AMPLIFIER POWER BEFORE
CLIPPING LF: 45W HF: 45W
TYPE Class D
S/N RATIO (AT UNITY GAIN) >90 dB, referred to full output
THD AT RATED POWER <0.04 %
CMRR >65dB
INPUT LEVEL FOR 90dB SPL AT 1M 0dBU
INPUT IMPEDANCE 22KΩ
CONTROLS, I/O
INPUT One fully balanced XLR socket
one unbalanced RCA socket
GAIN CONTROL RANGE -70dB to +6dB
BASS TILT -2dB , -4dB , -6dB @ 80Hz
TREBLE TILT -2dB @ 15kHz
BASS ROLL-OFF 100Hz, 6dB/ octave
CONTROLS & SWITCHES
REAR Power switch, volume control, 4 DIP switches for
bass/ treble tilts & bass roll-off
INDICATORS Power ON /OFF, Overvoltage protect
GENERAL
POWER REQUIREMENT 230VAC, ±10%, 50Hz
POWER CONSUMPTION 100VA Max.
PROTECTION Over current, Overheat, RFI, Switch on/ off,
Mains overvoltage
FINISH Black PVC with black painted front
MECHANICAL DIM. (HxWxD) mm 306 x 194 x 210
NET WEIGHT 6.3kg
NOTE: Due to continuous improvements, all specifications are subject to change
PM 100V2 SPECIFICATIONS
PM SERIES V2 page 12
SYSTEM
DESCRIPTION 2-way active monitor
TRANSDUCER COMPLEMENTS LF: 6" injection-moulded PP cone woofer
HF: 26mm silk-dome neodymium magnet tweeter
ENCLOSURE TYPE Vented, through rear-firing aerodynamic port
ENCLOSURE MATERIAL MDF
OVERALL FREQUENCY RESPONSE 65Hz ~ 20kHz, (±3dB)
USABLE FREQUENCY RESPONSE 55Hz ~ 22kHz, (±10dB)
MAX SPL, HALF SPACE 107dB
CROSSOVER FREQUENCY 2.5kHz
AMPLIFIER POWER BEFORE
CLIPPING LF: 80W HF: 50W
TYPE Class D
S/N RATIO (AT UNITY GAIN) >90 dB, referred to full output
THD AT RATED POWER <0.04 %
CMRR >65dB
INPUT LEVEL FOR 90dB SPL AT 1M 0dBU
INPUT IMPEDANCE 22KΩ
CONTROLS, I/O
INPUT One fully balanced XLR socket
one unbalanced RCA socket
GAIN CONTROL RANGE -70dB to +6dB
BASS TILT -2dB , -4dB , -6dB @ 80Hz
TREBLE TILT -2dB @ 15kHz
BASS ROLL-OFF 80Hz, 6dB/ octave
CONTROLS & SWITCHES
REAR Power switch, volume control, 4 DIP switches for
bass/ treble tilts & bass roll-off
INDICATORS Power ON /OFF, Overvoltage protect
GENERAL
POWER REQUIREMENT 230VAC, ±10%, 50Hz
POWER CONSUMPTION 200VA Max.
PROTECTION Over current, Overheat, RFI, Switch on/ off,
Mains overvoltage
FINISH Black PVC with black painted front
MECHANICAL DIM. (HxWxD) mm 332 x 220 x 240
NET WEIGHT 10.0kg
NOTE: Due to continuous improvements, all specifications are subject to change

SYMPTOM Device remains 'OFF’
Make sure that the power cord is securely seated in the IEC socket and plugged all the
way into the AC outlet.
Make sure that the AC outlet is live (check with tester).
Remove power cord and check the Fuse. If blown, then replace with exact type and
rating.
SYMPTOM Device is 'ON' but no audio output
Is the gain control on the rear panel turned up?
Is the signal source turned up? Make sure that the signal level from the device
preceding the PM V2 is high enough to match the Input sensitivity (Gain control on
rear panel).
If either stereo pair is not producing sound, then switch the signal around. If the
problem also switches sides, the problem is not the monitor. It could be a bad signal
cable, or no signal from the mixer.
SYMPTOM Distorted sound
Ensure secure connectivity of the XLR.
Reduce signal level at mixer or reduce gain control of PM at rear panel.
Monitor the signal with headphones. Distorted sound in headphones indicate that the
problem lies in the signal source.
SYMPTOM Noise / Hum / Line interference
Proper signal wiring between the mixer and the monitor eliminates the hum, buzz and
all sorts of crackling noises. Make sure all connections are secure.
If unbalanced sources are used, make sure the cable run is not too long resulting in
hum pick-up problems. Improper cabling will result in unsatisfactory audio
reproduction. (please refer to XLR pin connections under Controls and Features on
page 3)
If a CATV cable is connected to the system, and a persistent mains hum occurs,
disconnect it. If the hum goes away call the cable operator to check for proper cable
grounding methods. Using BALUN transformers (1:1, isolated type) might solve the
problem.
Make sure that the signal cable is not routed near AC cables.
If a light dimmer or triac-based device exists on the same AC circuit as the monitor,
buzzing noises may occur. AC Line filters may eliminate the problem.
TROUBLESHOOTING
PM SERIES V2 page 13 PM SERIES V2
NOTES

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